Runway Insider: Rock-and-Roll Hair and Natural Makeup at William Rast

Obviously, when you're going backstage to do hair and makeup interviews at the William Rastfashion show, there's really only one person you're hoping to interview — Justin Timberlake! Justin and his friend Trace Ayala founded the line, and although I really tried to run into him, it didn't happen, sadly.

However, I did pick up some cool tricks for how to copy the sexy, undone hair look at the show and managed to sit across from Justin's very

lucky girlfriend, Jessica Biel! Check out how naturally pretty she looks at right — love the piece-y updo!

Jeanie Syfu, TRESemmé Celebrity Stylist, created the "Tousled Rocker Chic Waves" for the William Rast show using these steps:

1. On wet hair, apply TRESemmé 24 Hour Body Foaming Mousse from root to ends. Power dry with blow-dryer, using fingers.2. Create a center part from front to nape. Then create another part from ear to ear, dividing hair into four sections.3. Twist one section of hair and spray with TRESemmé 24 Hour Body Spray Gel, then diffuse twist with blow-dryer. Curl twist into a loose bun and set with a hairpin. Continue for all sections, creating four buns (two above the ears and two behind the ears).4. Remove pins, allowing all buns to fall, then shake out with fingers, and finish with TRESemmé 24 Hour Body Finishing Spray.

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